Cheap flights from Chennai to London from £217

The cheapest month to fly to London from Chennai is in October. Flight prices, which tend to average around £485, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Chennai averaging around £511.

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £602. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Chennai to London for around £710.

Fly from Chennai to London Heathrow for the best Chennai - London flight prices

You are more likely to see cheaper flights to London from Chennai when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £590 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Chennai for as low as £496 on momondo.

There are 3 cabin classes available to choose from on Chennai to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 18% on your flight if you consider stops on a Chennai to London flight.

Etihad Airways, Emirates, and SWISS are the most popular carriers operating from Chennai to London

British Airways, Etihad Airways and Air India are the top three most popular airlines that fly to London from Chennai according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to London. Keep in mind that there are 11 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Chennai and London have experienced a delay on any given week. The average delay length over the past 12 months has been 198 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

Dubai (DXB) was the most common stop: 32% of momondo users choosing one-stop flights on this route connected there.

Flights via Kuwait City (KWI) offer the lowest average return price of £406.

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 13h 15m.

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 10m.

As of April 2026, 2 flights take off from Chennai and land in London each day. The most common flight departure time for this route is 05:00, with 100% of daily flights taking off in the morning.

The number of flights available between Chennai and London is 14 per week as of April 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.